Results 71 to 80 of about 11,816 (290)

Segmentation and cycles of crustal accretion at mid-ocean ridges: a study of the Reykjanes Ridge [PDF]

open access: yes, 2003
Early studies of mid-ocean ridges suggest a fundamental difference between crustal accretionary processes at slow- and fast-spreading ridges. Accretion, and the supply of melt to the crust itself, is thought to be highly episodic at slow-spreading ridges
Gardiner, Alexander B.
core  

DQN‐Guided Subset‐Induced OCSVM Kernel Approximation for Imbalanced Anomaly Detection

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
Anomaly detection under limited normal data remains a fundamental challenge due to severe class imbalance and scarcity of anomalies. We propose a novel framework that reformulates support vector selection in One‐Class SVM as a sequential decision‐making problem.
Wenqian Yu, Jiaying Wu, Jinglu Hu
wiley   +1 more source

Contrasting the synoptic drivers of the UK heatwaves of 1976, 2003, 2018 and 2022

open access: yesWeather, EarlyView.
UK summer heatwaves are dictated by the polar jet stream position and sea surface temperature (SST) variability, affecting the Summer North Atlantic Oscillation (SNAO) index. The SNAO can determine and influence the Central England Precipitation (CEP) and Central England Temperature (CET).
Nedim Sladić   +4 more
wiley   +1 more source

Mobility and immobility of mid-ocean ridges and their implications to mantle dynamics

open access: yes, 2002
In the past two decades, the mobility of mid-ocean ridges relative to the mantle (absolute migration) have been correlated with major observable features, such as, spreading asymmetry and asymmetry in the abundance of seamounts. The mobility of mid-ocean
Kamwaya, ME, ME Kamwaya
core   +2 more sources

Geochemistry of mafic extrusive lavas in the Bayankhongor Ophiolite, Mongolia

open access: yesMongolian Geoscientist
This study presents new geochemical data on pillow lavas from the Bayankhongor Ophiolite in western Mongolia, revealing compositions that range from sub-alkaline to alkaline basalts.
Bayarmaa Batsukh   +4 more
doaj   +1 more source

Distance sampling: comparing walked transects and road transects for rock ptarmigan densities and population trends

open access: yesWildlife Biology, EarlyView.
We compared population trends for rock ptarmigan Lagopus muta densities (2003‒2019) derived from walked transects and driven road transects in Mosfellsheiði and Slétta in southwest and northeast Iceland, respectively. The walked transects were laid out according to a random rule.
Matteo Ferrarini, Ólafur K. Nielsen
wiley   +1 more source

Subducted Carbon From Mantle Plume in Mid‐Ocean Ridge Basalts

open access: yesGeophysical Research Letters
Deciphering the Earth's deep carbon cycle, from mantle plumes to mid‐ocean ridges, remains incompletely understood. In this study, we analyze the magnesium isotope composition of basalts collected from the South Mid‐Atlantic Ridge (SMAR), which have been
Haitao Zhang   +5 more
doaj   +1 more source

Melt extraction and crustal thickness variations at segmented mid-ocean ridges [PDF]

open access: yes, 2017
Mid-ocean ridges are underwater volcanic mountains extending more than 55,000 km in ocean basins worldwide, accounting for nearly 80% of the Earth’s volcanism.
Bai, Hailong
core   +1 more source

Deep blueprint: A literature review and guide to automated image classification for ecologists

open access: yesJournal of Animal Ecology, EarlyView.
A practical, literature‐grounded review that gives ecologists a clear, modular workflow for deep learning image classification. With code, GUIs and a novel deep sea case study (automated deep sea biotope classification) it lowers technical barriers and provides a usable blueprint for accelerating, standardising, and scaling ecological image analysis ...
Chloe A. Game   +2 more
wiley   +1 more source

On the Potential for Bioenergy and Biofuels from Hydrothermal Vent Microbes [PDF]

open access: yesOceanography, 2012
The discovery of deep-sea hydrothermal vents caused scientists to reconsider their notions about life in the deep sea. In these seemingly inhospitable environments, free-living microbes, as well as microbial-animal symbioses, thrive in the warm waters ...
Peter R. Girguis, James F. Holden
doaj  

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